Oh goodness, where to start.
A lot of rules were at the dinner table. No elbows on the table. Don't sneeze. If you had to sneeze, ask to be excused, then leave the table and sneeze. However, you're only allowed to leave once a meal. If you break that rule, you leave the table for good. I had bad allergies, needless to say, I missed a lot of meals. Actually, these were my father's rules, so my mom would bring me a sandwich when he was watching tv. Don't talk unless addressed by an adult first. Reply with your mouth empty. Don't slouch. When chewing, put your hands in your lap.
Other household rules. You can't go to bed unless all dinner dishes were done and kitchen cleaned. My sisters and I made the mistake of letting a pot soak, and forgot about it. We were rudely awakened late at night so we could get up and finish our job. Always address your father with sir and mom with ma'am (my mom hated that). May I, not, can I. When guests are over, sit and entertain them (that would be talking when talked to) and don't leave the room until given leave.
Can you tell my father was a tyrant? He divorced my mom when I was 10. At the time I was devastated, but I think we were far better off in hindsight.
I'll post more if I think of them.